(function () {

  var util = {
    css: function (elem, obj) {
      for (var i in obj) {
        elem.style[i] = obj[i];
      }
    },
    hasClass: function (elem, classN) {
      var className = elem.getAttribute("class");
      return className.indexOf(classN) != -1;
    }
  };

  function Colorpicker(opt) {
    if (this === window) throw `Colorpicker: Can't call a function directly`;
    this.init(opt);
  };

  Colorpicker.prototype = {
    init(opt) {
      let { el, initColor = "rgb(255,0,0)", allMode = ['hex', 'rgb'], color = '', ...more } = opt;
      var elem = document.getElementById(el);

      if (!(elem && elem.nodeType && elem.nodeType === 1)) {
        throw `Colorpicker: not found  ID:${el}  HTMLElement,not ${{}.toString.call(el)}`;
      }
      this.Opt = {
        ...more,
        el,
        initColor,
        allMode,
        color
      }
      this.bindElem = elem; // 缁戝畾鐨勫厓绱�
      this.elem_wrap = null; // 鏈€澶栧眰瀹瑰櫒
      this.fixedBg = null; // 鎷捐壊鍣ㄥ悗闈㈠浐瀹氬畾浣嶇殑閫忔槑div 鐢ㄤ簬鐐瑰嚮闅愯棌鎷捐壊鍣�
      this.elem_colorPancel = null; // 鑹插僵闈㈡澘
      this.elem_picker = null; // 鎷捐壊鍣ㄨ壊鍧楁寜閽�
      this.elem_barPicker1 = null; // 棰滆壊鏉�
      this.elem_hexInput = null; // 鏄剧ずhex鐨勮〃鍗�
      this.elem_showColor = null; // 鏄剧ず褰撳墠棰滆壊
      this.elem_showModeBtn = null; // 鍒囨崲杈撳叆妗嗘ā寮忔寜閽�
      this.elem_inputWrap = null; // 杈撳叆妗嗗灞傚鍣�
      this.pancelLeft = 0;
      this.pancelTop = 0;
      this.downX = 0;
      this.downY = 0;
      this.moveX = 0;
      this.moveY = 0;
      this.pointLeft = 0;
      this.pointTop = 0;
      this.current_mode = 'hex'; // input妗嗗綋鍓嶇殑妯″紡
      this.rgba = { r: 0, g: 0, b: 0, a: 1 };
      this.hsb = { h: 0, s: 100, b: 100 };
      var _this = this, rgb = initColor.slice(4, -1).split(",");
      this.rgba.r = parseInt(rgb[0]);
      this.rgba.g = parseInt(rgb[1]);
      this.rgba.b = parseInt(rgb[2]);
      var body = document.getElementsByTagName("body")[0],
        div = document.createElement("div");
      div.innerHTML = this.render();
      body.appendChild(div);
      this.elem_wrap = div;
      this.fixedBg = div.children[0];
      this.elem_colorPancel = div.getElementsByClassName("color-pancel")[0];
      this.pancel_width = this.elem_colorPancel.offsetWidth;
      this.pancel_height = this.elem_colorPancel.offsetHeight;
      this.elem_picker = div.getElementsByClassName("pickerBtn")[0];
      this.elem_colorPalette = div.getElementsByClassName("color-palette")[0];
      this.elem_showColor = div.getElementsByClassName("colorpicker-showColor")[0];
      this.elem_barPicker1 = div.getElementsByClassName("colorBar-color-picker")[0];
      /*   this.elem_barPicker2 = div.getElementsByClassName("colorBar-opacity-picker")[0]; */
      this.elem_hexInput = div.getElementsByClassName("colorpicker-hexInput")[0];
      this.elem_showModeBtn = div.getElementsByClassName("colorpicker-showModeBtn")[0];
      this.elem_inputWrap = div.getElementsByClassName("colorpicker-inputWrap")[0];
      /*  this.elem_opacityPancel = this.elem_barPicker2.parentNode.parentNode.children[1]; */
      // var rect = this.bindElem.getBoundingClientRect();
      var elem = this.bindElem;
      var top = elem.offsetTop;
      var left = elem.offsetLeft;
      while (elem.offsetParent) {
        top += elem.offsetParent.offsetTop;
        left += elem.offsetParent.offsetLeft;
        elem = elem.offsetParent;
      }
      this.pancelLeft = left + this.elem_colorPalette.clientWidth;
      this.pancelTop = top + this.bindElem.offsetHeight;
      util.css(div, {
        "position": "absolute",
        "z-index": 2,
        "display": 'none',
        "left": left + "px",
        "top": top + this.bindElem.offsetHeight + "px"
      });
      this.bindMove(this.elem_colorPancel, this.setPosition, true);
      this.bindMove(this.elem_barPicker1.parentNode, this.setBar, false);
      /*  this.bindMove(this.elem_barPicker2.parentNode,this.setBar,false); */
      this.bindElem.addEventListener("click", function () {
        _this.show();
      }, false);
      this.fixedBg.addEventListener("click", function (e) {
        _this.hide();
      }, false)
      this.elem_showModeBtn.addEventListener("click", function () {
        _this.switch_current_mode();
      }, false)
      this.elem_wrap.addEventListener("input", function (e) {
        var target = e.target, value = target.value;
        _this.setColorByInput(value);
      }, false);
      this.elem_colorPalette.addEventListener("click", function (e) {
        if (e.target.tagName.toLocaleLowerCase() == "p") {
          let colorStr = e.target.style.background;
          let rgb = colorStr.slice(4, -1).split(",");
          let rgba = {
            r: parseInt(rgb[0]),
            g: parseInt(rgb[1]),
            b: parseInt(rgb[2])
          }
          switch (_this.current_mode) {
            case "hex":
              _this.setColorByInput("#" + _this.rgbToHex(rgba))
              break;
            case 'rgb':
              let inputs = _this.elem_wrap.getElementsByTagName("input")
              inputs[0].value = rgba.r;
              inputs[1].value = rgba.g;
              inputs[2].value = rgba.b;
              _this.setColorByInput(colorStr)
              /* 	_this.hsb = _this.rgbToHsb(rgba); */
              break;
          }
        }
      }, false);
      (color != '' && this.setColorByInput(color));
    },
    render: function () {
      var tpl =
        `<div style="position: fixed; top: 0px; right: 0px; bottom: 0px; left: 0px;"></div>
				<div style="position: inherit;z-index: 100;display: flex;box-shadow: rgba(0, 0, 0, 0.3) 0px 0px 2px, rgba(0, 0, 0, 0.3) 0px 4px 8px;">
					<div style='width:180px;padding:10px;background: #f9f9f9;display: flex;flex-flow: row wrap;align-content: space-around;justify-content: space-around;' class='color-palette'>
						${this.getPaletteColorsItem()}
					</div>
					<div class="colorpicker-pancel" style="background: rgb(255, 255, 255);box-sizing: initial; width: 225px; font-family: Menlo;">
						<div style="width: 100%; padding-bottom: 55%; position: relative; border-radius: 2px 2px 0px 0px; overflow: hidden;">
							<div class="color-pancel" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; background: rgb(${this.rgba.r},${this.rgba.g},${this.rgba.b})">
								<style>
									.saturation-white {background: -webkit-linear-gradient(to right, #fff, rgba(255,255,255,0));background: linear-gradient(to right, #fff, rgba(255,255,255,0));}
									.saturation-black {background: -webkit-linear-gradient(to top, #000, rgba(0,0,0,0));background: linear-gradient(to top, #000, rgba(0,0,0,0));}
								</style>
								<div class="saturation-white" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px;">
									<div class="saturation-black" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px;">
									</div>
									<div class="pickerBtn" style="position: absolute; top: 0%; left: 100%; cursor: default;">
										<div style="width: 12px; height: 12px; border-radius: 6px; box-shadow: rgb(255, 255, 255) 0px 0px 0px 1px inset; transform: translate(-6px, -6px);">
										</div>
									</div>
								</div>
							</div>
						</div>
						<div style="padding: 0 16px 20px;">
							<div class="flexbox-fix" style="display: flex;align-items: center;height: 40px;">
								<div style="width: 32px;">
									<div style="width: 16px; height: 16px; border-radius: 8px; position: relative; overflow: hidden;">
										<div class="colorpicker-showColor" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; border-radius: 8px; box-shadow: rgba(0, 0, 0, 0.1) 0px 0px 0px 1px inset; background:rgb(${this.rgba.r},${this.rgba.g},${this.rgba.b}); z-index: 2;"></div>
										<div class="" style="position: absolute; top: 0px; right: 0px; bottom: 0px; left: 0px; background: url(&quot;&quot;) left center;"></div>
									</div>
								</div>
								<div style="-webkit-box-flex: 1; flex: 1 1 0%;"><div style="height: 10px; position: relative;">
									<div style="position: absolute; top: 0px;right: 0px; bottom: 0px; left: 0px;">
										<div class="hue-horizontal" style="padding: 0px 2px; position: relative; height: 100%;">
											<style>
												.hue-horizontal {background: linear-gradient(to right, #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);background: -webkit-linear-gradient(to right, #f00 0%, #ff0 17%, #0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);}
												.hue-vertical {background: linear-gradient(to top, #f00 0%, #ff0 17%, #0f0 33%,#0ff 50%, #00f 67%, #f0f 83%, #f00 100%);background: -webkit-linear-gradient(to top, #f00 0%, #ff0 17%,#0f0 33%, #0ff 50%, #00f 67%, #f0f 83%, #f00 100%);}
											</style>
											<div  class="colorBar-color-picker" style="position: absolute; left: 0%;">
												<div style="width: 12px; height: 12px; border-radius: 6px; transform: translate(-6px, -1px); background-color: rgb(248, 248, 248); box-shadow: rgba(0, 0, 0, 0.37) 0px 1px 4px 0px;">
												</div>
											</div>
										</div>
									</div>
								</div>
							</div>
						</div>
						<div class="flexbox-fix" style="display: flex;">
							<div class="flexbox-fix colorpicker-inputWrap" style="-webkit-box-flex: 1; flex: 1 1 0%; display: flex; margin-left: -6px;">
									${this.getInputTpl()}
							</div>
							<div class="colorpicker-showModeBtn" style="width: 32px; text-align: right; position: relative;">
								<div style="margin-right: -4px;  cursor: pointer; position: relative;">
									<svg viewBox="0 0 24 24" style="width: 24px; height: 24px; border: 1px solid transparent; border-radius: 5px;"><path fill="#333" d="M12,5.83L15.17,9L16.58,7.59L12,3L7.41,7.59L8.83,9L12,5.83Z"></path><path fill="#333" d="M12,18.17L8.83,15L7.42,16.41L12,21L16.59,16.41L15.17,15Z"></path></svg>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>`;
      return tpl;
    },
    getInputTpl: function () {
      var current_mode_html = "";
      switch (this.current_mode) {
        case 'hex':
          var hex = "#" + this.rgbToHex(this.HSBToRGB(this.hsb));
          current_mode_html += `
							<div style="padding-left: 6px; width: 100%;">
								<div style="position: relative;">
									<input class="colorpicker-hexInput" value="${hex}" spellcheck="false" style="font-size: 11px; color: rgb(51, 51, 51); width: 100%; border-radius: 2px; border: none; box-shadow: rgb(218, 218, 218) 0px 0px 0px 1px inset; height: 21px; text-align: center;">
									<span style="text-transform: uppercase; font-size: 11px; line-height: 11px; color: rgb(150, 150, 150); text-align: center; display: block; margin-top: 12px;">hex</span>
								</div>
							</div>`;
          break;
        case 'rgb':
          for (var i = 0; i < 3; i++) {
            current_mode_html +=
              `<div style="padding-left: 6px; width: 100%;">
								<div style="position: relative;">
									<input class="colorpicker-hexInput" value="${this.rgba['rgb'[i]]}" spellcheck="false" style="font-size: 11px; color: rgb(51, 51, 51); width: 100%; border-radius: 2px; border: none; box-shadow: rgb(218, 218, 218) 0px 0px 0px 1px inset; height: 21px; text-align: center;">
									<span style="text-transform: uppercase; font-size: 11px; line-height: 11px; color: rgb(150, 150, 150); text-align: center; display: block; margin-top: 12px;">${'rgb'[i]}</span>
								</div>
							</div>`;
          }
        default:
      }
      return current_mode_html;
    },
    getPaletteColorsItem: function () {
      let str = '';
      let palette = ["rgb(0, 0, 0)", "rgb(67, 67, 67)", "rgb(102, 102, 102)", "rgb(204, 204, 204)", "rgb(217, 217, 217)", "rgb(255, 255, 255)",
        "rgb(152, 0, 0)", "rgb(255, 0, 0)", "rgb(255, 153, 0)", "rgb(255, 255, 0)", "rgb(0, 255, 0)", "rgb(0, 255, 255)",
        "rgb(74, 134, 232)", "rgb(0, 0, 255)", "rgb(153, 0, 255)", "rgb(255, 0, 255)", "rgb(230, 184, 175)", "rgb(244, 204, 204)",
        "rgb(252, 229, 205)", "rgb(255, 242, 204)", "rgb(217, 234, 211)", "rgb(208, 224, 227)", "rgb(201, 218, 248)", "rgb(207, 226, 243)",
        "rgb(217, 210, 233)", "rgb(234, 209, 220)", "rgb(221, 126, 107)", "rgb(234, 153, 153)", "rgb(249, 203, 156)", "rgb(255, 229, 153)",
        "rgb(182, 215, 168)", "rgb(162, 196, 201)", "rgb(164, 194, 244)", "rgb(159, 197, 232)", "rgb(180, 167, 214)"]
      palette.forEach(item => str += `<p style='width:20px;height:20px;background:${item};margin:0 5px;border: solid 1px #d0d0d0;'></p>`)
      return str;
    },
    setPosition(x, y) {
      var LEFT = parseInt(x - this.pancelLeft),
        TOP = parseInt(y - this.pancelTop);
      this.pointLeft = Math.max(0, Math.min(LEFT, this.pancel_width));
      this.pointTop = Math.max(0, Math.min(TOP, this.pancel_height));
      util.css(this.elem_picker, {
        left: this.pointLeft + "px",
        top: this.pointTop + "px"
      })
      this.hsb.s = parseInt(100 * this.pointLeft / this.pancel_width);
      this.hsb.b = parseInt(100 * (this.pancel_height - this.pointTop) / this.pancel_height);
      this.setShowColor();
      this.setValue(this.rgba);
    },
    setBar: function (elem, x) {
      var elem_bar = elem.getElementsByTagName("div")[0],
        rect = elem.getBoundingClientRect(),
        elem_width = elem.offsetWidth,
        X = Math.max(0, Math.min(x - rect.x, elem_width));
      if (elem_bar === this.elem_barPicker1) {
        util.css(elem_bar, {
          left: X + "px"
        });
        this.hsb.h = parseInt(360 * X / elem_width);
      } else {
        util.css(elem_bar, {
          left: X + "px"
        });
        this.rgba.a = X / elem_width;
      }
      this.setPancelColor(this.hsb.h);
      this.setShowColor();
      this.setValue(this.rgba);
    },
    setPancelColor: function (h) {
      var rgb = this.HSBToRGB({ h: h, s: 100, b: 100 });
      util.css(this.elem_colorPancel, {
        background: 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + this.rgba.a + ')'
      });
    },
    setShowColor: function () {
      var rgb = this.HSBToRGB(this.hsb);
      this.rgba.r = rgb.r;
      this.rgba.g = rgb.g;
      this.rgba.b = rgb.b;
      util.css(this.elem_showColor, {
        background: 'rgba(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ',' + this.rgba.a + ')'
      });
    },
    setValue: function (rgb) {
      var hex = "#" + this.rgbToHex(rgb);
      this.elem_inputWrap.innerHTML = this.getInputTpl();
      this.Opt.change(this.bindElem, hex);
    },
    setColorByInput: function (value) {
      var _this = this;
      switch (this.current_mode) {
        case "hex":
          value = value.slice(1);
          if (value.length == 3) {
            value = '#' + value[0] + value[0] + value[1] + value[1] + value[2] + value[2];
            this.hsb = this.hexToHsb(value);
          } else if (value.length == 6) {
            this.hsb = this.hexToHsb(value);
          }
          break;
        case 'rgb':
          var inputs = this.elem_wrap.getElementsByTagName("input"),
            rgb = {
              r: inputs[0].value ? parseInt(inputs[0].value) : 0,
              g: inputs[1].value ? parseInt(inputs[1].value) : 0,
              b: inputs[2].value ? parseInt(inputs[2].value) : 0
            };
          this.hsb = this.rgbToHsb(rgb);
      }
      this.changeViewByHsb();
    },
    changeViewByHsb: function () {
      this.pointLeft = parseInt(this.hsb.s * this.pancel_width / 100);
      this.pointTop = parseInt((100 - this.hsb.b) * this.pancel_height / 100);
      util.css(this.elem_picker, {
        left: this.pointLeft + "px",
        top: this.pointTop + "px"
      });
      this.setPancelColor(this.hsb.h);
      this.setShowColor();
      util.css(this.elem_barPicker1, {
        left: this.hsb.h / 360 * (this.elem_barPicker1.parentNode.offsetWidth) + "px"
      });
      var hex = '#' + this.rgbToHex(this.HSBToRGB(this.hsb));
      this.Opt.change(this.bindElem, hex);
    },
    switch_current_mode: function () {
      this.current_mode = this.current_mode == 'hex' ? 'rgb' : 'hex';
      this.elem_inputWrap.innerHTML = this.getInputTpl();
    },
    bindMove: function (elem, fn, bool) {
      var _this = this;
      elem.addEventListener("mousedown", function (e) {
        _this.downX = e.pageX;
        _this.downY = e.pageY;
        bool ? fn.call(_this, _this.downX, _this.downY) : fn.call(_this, elem, _this.downX, _this.downY);
        document.addEventListener("mousemove", mousemove, false);
        function mousemove(e) {
          _this.moveX = e.pageX;
          _this.moveY = e.pageY;
          bool ? fn.call(_this, _this.moveX, _this.moveY) : fn.call(_this, elem, _this.moveX, _this.moveY);
          e.preventDefault();
        }
        document.addEventListener("mouseup", mouseup, false);
        function mouseup(e) {
          document.removeEventListener("mousemove", mousemove, false)
          document.removeEventListener("mouseup", mouseup, false)
        }
      }, false);
    },
    show: function () {
      util.css(this.elem_wrap, {
        "display": "block"
      })
    },
    hide: function () {
      util.css(this.elem_wrap, {
        "display": "none"
      })
    },
    HSBToRGB: function (hsb) {
      var rgb = {};
      var h = Math.round(hsb.h);
      var s = Math.round(hsb.s * 255 / 100);
      var v = Math.round(hsb.b * 255 / 100);
      if (s == 0) {
        rgb.r = rgb.g = rgb.b = v;
      } else {
        var t1 = v;
        var t2 = (255 - s) * v / 255;
        var t3 = (t1 - t2) * (h % 60) / 60;
        if (h == 360) h = 0;
        if (h < 60) { rgb.r = t1; rgb.b = t2; rgb.g = t2 + t3 }
        else if (h < 120) { rgb.g = t1; rgb.b = t2; rgb.r = t1 - t3 }
        else if (h < 180) { rgb.g = t1; rgb.r = t2; rgb.b = t2 + t3 }
        else if (h < 240) { rgb.b = t1; rgb.r = t2; rgb.g = t1 - t3 }
        else if (h < 300) { rgb.b = t1; rgb.g = t2; rgb.r = t2 + t3 }
        else if (h < 360) { rgb.r = t1; rgb.g = t2; rgb.b = t1 - t3 }
        else { rgb.r = 0; rgb.g = 0; rgb.b = 0 }
      }
      return { r: Math.round(rgb.r), g: Math.round(rgb.g), b: Math.round(rgb.b) };
    },
    rgbToHex: function (rgb) {
      var hex = [
        rgb.r.toString(16),
        rgb.g.toString(16),
        rgb.b.toString(16)
      ];
      hex.map(function (str, i) {
        if (str.length == 1) {
          hex[i] = '0' + str;
        }
      });
      return hex.join('');
    },
    hexToRgb: function (hex) {
      var hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
      return { r: hex >> 16, g: (hex & 0x00FF00) >> 8, b: (hex & 0x0000FF) };
    },
    hexToHsb: function (hex) {
      return this.rgbToHsb(this.hexToRgb(hex));
    },
    rgbToHsb: function (rgb) {
      var hsb = { h: 0, s: 0, b: 0 };
      var min = Math.min(rgb.r, rgb.g, rgb.b);
      var max = Math.max(rgb.r, rgb.g, rgb.b);
      var delta = max - min;
      hsb.b = max;
      hsb.s = max != 0 ? 255 * delta / max : 0;
      if (hsb.s != 0) {
        if (rgb.r == max) hsb.h = (rgb.g - rgb.b) / delta;
        else if (rgb.g == max) hsb.h = 2 + (rgb.b - rgb.r) / delta;
        else hsb.h = 4 + (rgb.r - rgb.g) / delta;
      } else hsb.h = -1;
      hsb.h *= 60;
      if (hsb.h < 0) hsb.h += 360;
      hsb.s *= 100 / 255;
      hsb.b *= 100 / 255;
      return hsb;
    }
  }
  Colorpicker.create = function (opt) {
    return new Colorpicker(opt)
  }
  window.Colorpicker = Colorpicker;
})()
